333859

Ortosilicato de tetraetilo

99.999% trace metals basis

• Sinónimos: TEOS, Tetraetoxisilano, Éster tetraetílico del ácido ortosilícico
• Fórmula lineal: Si(OC₂H₅)₄
• Número de CAS: 78-10-4
• Peso molecular: 208.33
• Beilstein/REAXYS Number: 1422225
• EC Number: 201-083-8
• MDL number: MFCD00009062
• UNSPSC Code: 12352103
• PubChem Substance ID: 24860192
• NACRES: NA.23

Propiedades

• vapor density: 7.2 (vs air)
• vapor pressure: <1 mmHg ( 20 °C)
• assay: 99.999% trace metals basis
• form: liquid
• refractive index: n20/D 1.382 (lit.)
• bp: 168 °C (lit.)
• density: 0.933 g/mL at 20 °C (lit.)
• SMILES string: CCO[Si](OCC)(OCC)OCC
• InChI: 1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3
• InChI key: BOTDANWDWHJENH-UHFFFAOYSA-N

Descripción

General description

Tetraethyl orthosilicate (TEOS) is an inorganic material used as a precursor for the synthesis of silica-based materials by methods such as sol gel technique, due to its high affinity to water. It can also be used in the synthesis of blended membranes.

Application

TEOS is majorly used as a silicon source in the synthesis of silicon oxide which can be further used in a variety of optoelectronics based applications. It can also be used in the formation of hybrid coatings for potential usage in corrosion protection.

Interaccionará con la dodecilamina en la formación de compuestos de intercalación de H⁺-magadiita y se utilizó en un estudio de vidrios bioactivos de metales mixtos.

Utilizado normalmente como precursor para preparar xerogeles

Información de seguridad

• Pictograms: GHS02,GHS07
• signalword: Warning
• hcodes: H226,H319,H332,H335
• pcodes: P210 - P233 - P240 - P241 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 1
• flash_point_f: 113.0 °F - closed cup
• flash_point_c: 45 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter